Microwave Characteristics of ZnO-Doped CeO2 Dielectric Resonators
CeO2 ceramics with ZnO additions (1 and 2 wt%) were prepared with conventional solid-state route have been investigated. Doping with ZnO (up to 1 wt%) can effectively promote the densification of CeO2 ceramics at low sintering temperature. At 1550 oC, CeO2 ceramics with 1 wt% ZnO addition possesses a dielectric constant ( ε r) of 23.2, a Q×f value of 53000 GHz and a temperature coefficient of resonant frequency (τf) of –47 ppm/oC.
Wei Pan and Jianghong Gong
C. H. Hsu et al., "Microwave Characteristics of ZnO-Doped CeO2 Dielectric Resonators", Key Engineering Materials, Vols. 368-372, pp. 188-191, 2008